It presents a method how to make use of electrospark hardening and change the structure of die to prevent up run of scraps.
本文针对高速冲裁过程中废料回带产生的原因及其危害，介绍了用电火花强化改变凹模结构来防止废料回带的方法。
In order to improve surface quality of the electrospark hardening layer, JDQ 1 type equipment of pulse electrospark hardening was devised.
为了改善电火花强化层的表面质量，研制了JD Q -1型脉冲电火花强化机。
In order to improve surface quality of the electrospark hardening layer, JDQ 1 type equipment of pulse electrospark hardening was devised.
为了改善电火花强化层的表面质量，研制了JD Q -1型脉冲电火花强化机。
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